NVRAM Verification Failed?

[idioteK]

Anyone know what causes this error message? I boot up the router, enter config mode, paste in a config file and when I go to write it to memory I get that message... I'm not very experienced with routers yet.(obviously) Any ideas would be appreciated.. Thanks

 

[jeter]

when you are copying and pasting are doing a entire config?
You should only do a section at a time. To do this you must
be in the global programming. (config t). Jeter@LasVegas.com
J.Fisher CCNA

 

[idioteK]

It seems to take the config fine. If I 'sh running-config' after pasting it's all good.. But, when I try to 'wr m' or 'copy running-config startup-config' I get the error "NVRAM Verification Failed". In other words it would work fine until I reloaded. I've been looking all over for any kind of info on this error and can't find the first bit... Thanks for your help.

 

[jeter]

Heres some information I found from Cisco.

CSCds13173

On a Cisco 800 series router that is running Cisco IOS Release 12.1(3) through 12.1(5.2), you may receive an error message when trying to save the running configuration if it consumes more than 4 KB of NVRAM. This situation is most evident after the router generates a Rivest, Shamir, and Adelman (RSA) key pair because even a small configuration may require over 4 KB of NVRAM because of RSA key space requirements. The router displays the following error message:


router#write memory


Building configuration... [OK] ->


NVRAM Verification Failed


router#


As a result of the above error, the entire contents of NVRAM are erased, including the startup configuration.


Workaround: Decrease the number of bits in the modules for the RSA keys by using the service compress-config global configuration command to reduce consumed NVRAM space, or use the boot config flash: command to save some of the configurations in a Flash file rather than in NVRAM.


Alternate workaround: Use Cisco IOS Release 12.1(5.3) or a later release

Jeter@LasVegas.com
J.Fisher CCNA

 

[idioteK]

Thank you very much for the reply. Very helpful! I will give those options a try and let you know how it goes. I won't be back to work until Monday but I will keep you informed. Thanks again.